Drainage cutting combined with weeper drain could quickly dewater to the designed water level.
用疏导法排水与盲沟排水相结合的技术措施,能快捷有效地把泉水降至设计标高以下。
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Drainage cutting combined with weeper drain could quickly dewater to the designed water level.
用疏导法排水与盲沟排水相结合的技术措施,能快捷有效地把泉水降至设计标高以下。
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